Crystallization and characterization of nonlinear optical l-histidinium dihydrogen orthophosphate orthophosporic acid single crystal by J. Madhavan, S. Aruna, K. Ambujam, A. Joseph Arul Pragasam, S. M. Ravikumar, M. Gulam Mohamed, and P. Sagayaraj

Crystal Research and Technology

Cryst. Res. Technol. 41, 997 (2006) - Abstract -

Crystallization and characterization of nonlinear optical l-histidinium dihydrogen orthophosphate orthophosporic acid single crystal

J. Madhavan, S. Aruna, K. Ambujam*, A. Joseph Arul Pragasam**, S. M. Ravikumar, M. Gulam Mohamed***, and P. Sagayaraj

Department of Physics, Loyola College, Chennai-4, India
*Department of Physics, Queen Mary’s College, Chennai-600 004, India
**Department of Physics, Sathyabama Institute of Science and Technology, Chennai-600 119, India
***Department of Physics, The New College, Chennai-600 013, India

Keywords	NLO, single crystal, solution growth, thermal analysis, dielectric constant
PACS	78.40.-q, 65.40.-b, 62.20.x, 77.22.-d, 72.40.+w
DOI	10.1002/crat.200610710

L-histidinium dihydrogen orthophosphate orthophosporic acid (abbreviated as LHP) was successfully grown by slow evaporation technique from aqueous solution. The crystal was characterized by X-ray diffractometry (XRD), UV-Vis-NIR, TGA, DTA, microhardness and solubility studies. The dielectric constant and dielectric loss of the crystal were studied as function of frequency. Photoconductivity studies were also carried out on the sample. The SHG efficiency of the crystal is studied using the Kurtz and Perry technique.

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